CN202652611U - Human body induction type acousto-optic control type automatic dimming intelligent light box circuit - Google Patents
Human body induction type acousto-optic control type automatic dimming intelligent light box circuit Download PDFInfo
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- CN202652611U CN202652611U CN2012201820841U CN201220182084U CN202652611U CN 202652611 U CN202652611 U CN 202652611U CN 2012201820841 U CN2012201820841 U CN 2012201820841U CN 201220182084 U CN201220182084 U CN 201220182084U CN 202652611 U CN202652611 U CN 202652611U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a human body induction type acousto-optic control type automatic dimming intelligent light box circuit. The circuit is composed of three portions including a control board, an LED driving board and a power supply. The power supply is used to supply power to the control board and the LED driving board separately. The control board is connected with the LED driving board and is used to send a PWM signal to the LED driving board. The control board is provided with a power supply circuit, a light-operated switch circuit, a light-operated automatic dimming circuit, an acoustic control type automatic dimming circuit and a human body induction type automatic dimming circuit. The LED driving board is provided with several driving circuits which are connected in parallel, and diodes which are connected with the driving circuits. The brightness requirement is very strong, and requirements of the LED driving board can not be satisfied by a general power supply circuit, so a 220V-to-24V high power switching power supply is adopted in the circuit of the utility model. The circuit of the utility model has the following advantages: the brightness of the light box can be changed automatically with the ambient brightness, the larger the ambient brightness is, the smaller the brightness of the light box is, and when the value of the ambient brightness reaches the preset value, the light box will be turned off automatically, so advantages of energy conservation and high efficiency are realized.
Description
Technical field
The utility model relates to a kind of human body sensing controlled by sound and light intelligent lamp box circuit with an automatic light meter.
Background technology
LED is as the lighting source of a new generation with solid luminescent, have that volume is little, lightweight, light efficiency is high, mechanical strength is large, safe and reliable, life-span length, applying flexible, switch tolerance performance are good, it is many a bit to be convenient to control etc., more energy-conservation more than 95% than incandescent lamp, more energy-conservation more than 2/3rds than power saving fluorescent lamp, be the ideal chose of Based Intelligent Control lighting source, have absolute predominance and replace and replace traditional incandescent lamp and power saving fluorescent lamp.
In led light source and the plurality of advantages that fluorescent tube is compared, be easy to realize that light modulation is its an outstanding advantage place.In common LED lamp box, Switching Power Supply is by the rear directly driving LED of resistance current limliting (or all pressing).Sort circuit is with low cost, but can not realize that the automatic or manual brightness regulation is the greatest drawback place of sort circuit, more can not realize the synchronous light modulation of all unit lamp plates.Simultaneously because sort circuit adopts is DC driven, under same brightness conditions, the power that consumes is much bigger than pulsed drive, and the colour temperature that LED sends light source also can change along with the difference of LED size of current.
Adopt the light adjusting circuit of pwm pulse then different from above DC driven, LED is in the pulsed operation state of switch-on and-off, and the pulse top is wider, and the LED ON time is just longer, and LED is just brighter, otherwise will be darker.As long as can change the variation (or potentiometer) of ambient brightness the variation of pulse duration into by light-sensitive device, just can realize that lamp box brightness is with the function of ambient brightness automatic regulating lightness.Because LED is the power of electric consumption when conducting only, the power consumption when disconnecting then is zero, so the power that average power consumption consumes than DC driven under equal brightness conditions is little, thereby can reach energy-conservation and prolong the LED purpose in useful life.When the PWM light modulation, the maximum current during conducting is the steady state value that sets, and the size of electric current is only relevant with the width of PWM, therefore can colour temperature not exerted an influence because of the variation of On current.
In the public place such as corridor, parking lot, garage, toilet and park, garden, station, road and family's floor light are used, various acoustic controls, light-operated, human body induction control or acousto-optic intelligent control circuit are very commonly used, this intelligent switching control circuit need not hand switch control, just can realize automatically that do not work daytime, do not work when nobody is movable evening, someone lights when movable, to reach energy-conservation purpose.According to the characteristic of these special Sensitive Apparatuses, we can control with them the output of PWM width fully automatically, thereby reach purpose with an automatic light meter.
The utility model content
The purpose of this utility model provides a kind of human body sensing controlled by sound and light intelligent lamp box circuit with an automatic light meter, realizes that environment is brighter, and lamp box is also brighter, otherwise just darker, to reach best visual effect and energy-conservation purpose.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of human body sensing controlled by sound and light intelligent lamp box circuit with an automatic light meter, comprise control board, the some LED drive plates and the power supply that are connected in parallel, described control board connects the LED drive plate, control board all is connected power supply with the LED drive plate, described control board is provided with interconnective power circuit, light-controlled switching circuit, light-control automatic dimming circuit, acoustic control automatic dimming circuit and human body sensing automatic dimming circuit, and the LED drive plate forms by some drive circuits of parallel connection and with the interconnective diode of drive circuit.
Described power supply is the Switching Power Supply that 220V turns 24V.
Described light-controlled switching circuit comprises amplifying circuit, integrated operational amplifier circuit and the Schmitt trigger circuit that is comprised of 555 timers.
Described light-control automatic dimming circuit comprises photo resistance and and the corresponding amplifying circuit of photo resistance.
Described acoustic control automatic dimming circuit comprises MIC, discharge circuit, NAND gate and the monostable flipflop that is made of 555 timers.
Described human body sensing automatic dimming circuit comprises infrared sensor of the human body/human body infrared line receiver, integrated operational amplifier circuit and the monostable flipflop that is made of 555 timers.
The beneficial effects of the utility model are: the brightness of lamp box can change automatically with the variation of ambient brightness, and environment is brighter, and lamp box is also brighter; After ambient brightness value reaches preset value, lamp box meeting autoshutdown, efficient energy-saving; When have the people under the lamp box through or noise when having reached certain decibel, lamp box will send highlighted, play a part one eye-catching, and after time-delay a period of time, if there be nobody nearby's process, also do not have noise, lamp box becomes again normal brightness, has realized the automatic on/off function that changes according to ambient brightness.
Description of drawings
The below is described in further detail the utility model with reference to the accompanying drawings.
Fig. 1 is the described human body sensing controlled by sound and light of the utility model embodiment intelligent lamp box schematic block circuit diagram with an automatic light meter;
Fig. 2 is the described human body sensing controlled by sound and light of the utility model embodiment intelligent lamp box circuit theory diagrams with an automatic light meter;
Fig. 3 is the circuit diagram of drive circuit on the LED drive plate in the described human body sensing controlled by sound and light of the utility model embodiment intelligent lamp box circuit with an automatic light meter.
Among the figure:
1, control board; 101, power circuit; 102, light-controlled switching circuit; 103, light-control automatic dimming circuit; 104, acoustic control automatic dimming circuit; 105, human body sensing automatic dimming circuit; 2, LED drive plate; 201, drive circuit; 202, diode; 3, power supply.
Embodiment
As shown in Figure 1, the described human body sensing controlled by sound and light of the utility model embodiment intelligent lamp box circuit with an automatic light meter, comprise control board 1,3 LED drive plates 2 that are connected in parallel and power supply 3, described control board 1 connects LED drive plate 2, control board 1 is connected with the LED drive plate and is all connected power supply 3, control board 1 gives a pwm signal to LED drive plate 2, described control board 1 is provided with interconnective power circuit 101(power circuit 101 the 24V direct current of input is converted to the 5V galvanic current, for control board 1 work), light-controlled switching circuit 102, light-control automatic dimming circuit 103, acoustic control automatic dimming circuit 104 and human body sensing automatic dimming circuit 105, LED drive plate 2 forms by 4 drive circuits 201 of parallel connection and with drive circuit 201 interconnective diodes 202, the adjustable drive circuit of constant current that drive circuit 201 is comprised of the pwm signal of control board 1 output and DW8502 power supply chip and peripheral components thereof, when LED is in the pulsed operation state of switch-on and-off, the pulse top is wider, the LED ON time is just longer, LED is just brighter, otherwise will be darker.
Because advertising lamp box is very strong to the brightness requirement of light, general power circuit does not satisfy the requirement of LED drive plate, and described the utility model adopts 220V to turn the high power switching power supply of 24V.
Power circuit 101 is comprised of power supply chip and its corresponding peripheral circuit, and the 24V direct current of input is converted to the 5V galvanic current, for control board 1 work.
Described light-controlled switching circuit 102 is intelligent power control units, and it comprises amplifying circuit, integrated operational amplifier circuit and the Schmitt trigger circuit that is comprised of 555 timers.By the power of light, trigger timer with the rectangular pulse waveform of change output, thereby control the light on and off of lamp box.After ambient brightness value reached preset value, lamp box meeting autoshutdown reached energy-saving effect.When ambient brightness was lower than preset value, lamp box returned automatically and lights.
Described light-control automatic dimming circuit 103 comprises photo resistance and and the corresponding amplifying circuit of photo resistance.By the sensitiveness of photo resistance to light, faint light is changed, be converted to electricity and change, amplify through amplifying circuit again, the reverse input end of signal to integrated operational amplifier circuit, and reach signal is finely tuned, thereby make lamp box realize automatic dimming function.
Described acoustic control automatic dimming circuit 104 comprises MIC, discharge circuit, NAND gate and the monostable flipflop that is made of 555 timers.By the sensitivity of MIC to sound, voice signal is converted to the signal of telecommunication, again the signal of telecommunication is given the negative input end of secondary discharge circuit, amplify through triode again and give 555 monostable flipflops that consist of (playing time-lag action), give NAND gate signal again, thereby guarantee that output always is not high level when having sound at ordinary times, when noise is arranged, be output as low level.
Described human body sensing automatic dimming circuit 105 comprises the pyroelectric human body infrared transducer or to human body infrared very responsive infrared remote receiver, integrated operational amplifier circuit and the monostable flipflop that is made of 555 timers.The infrared ray centre wavelength of human body radiation is 9 ~ 10um, and the wavelength sensitivity of pyroelectric infrared sensor almost stable in 0.2 ~ 20um scope is constant, just in time is suitable for the detection of human infrared radiation.When having the people close, transducer or receiver receive faint human body infrared, and be converted to the signal of telecommunication, again the signal of telecommunication is given the reverse input end of secondary discharge circuit, amplify through triode again and give 555 monostable flipflops that consist of (playing time-lag action), give NAND gate signal again, thereby guarantee that in lamp box there be nobody nearby process output always is high level, when there being the people to be output as low level under the lamp box when process.
Described LED drive plate by 4 respectively independently drive circuit form with corresponding light-emitting diode.Drive circuit is the adjustable drive circuit of constant current that device forms by the pwm signal of control board output and DW8502 power supply chip and periphery thereof in fact.LED is in the pulsed operation state of switch-on and-off, and the pulse top is wider, and the LED ON time is just longer, and LED is just brighter, otherwise will be darker
During concrete the use, in the time of by day, along with the reinforcement of ambient brightness, the brightness of lamp also can be strengthened automatically, and ambient brightness becomes, and lamp also can be automatically dimmed.Be enhanced to certain value but work as ambient brightness, lamp box will automatic distinguishing always.When normal operating state with an automatic light meter, if the noise of environment is larger, people's process under the lamp box is arranged perhaps, lamp box has lost automatic dimming function exactly, becomes the high-high brightness state.Delay time after 60 seconds, if nobody's process under the lamp box does not have noise yet, lamp box just becomes state with an automatic light meter, normal operation.
In the time of night, along with the reinforcement of ambient brightness, the brightness of lamp also can be strengthened automatically, and ambient brightness is dimmed, and lamp also can be automatically dimmed.But when ambient brightness certain value that dies down always, lamp box will automatic distinguishing.When normal operating state with an automatic light meter, if the noise of environment is larger, people's process under the lamp box is arranged perhaps, lamp box has lost automatic dimming function exactly, becomes the high-high brightness state.Delay time after 60 seconds, if nobody's process under the lamp box does not have noise yet, lamp box just becomes state with an automatic light meter, normal operation.
After LED used certain time limit, brightness will descend.At this moment can will come on the luminance raising very easily by the potentiometer on the light-control automatic dimming circuit 103.Because having considered 80% and above amount of redundancy in the design of lamp box circuit, with caused light decay after the compensation LED long-term work, because each parts has enough power headroom, so can guarantee stability and the reliability of circuit working after the blast.
As shown in Figure 2, power circuit is comprised of power supply chip (78M05) and 4 electric capacity (C1, C2, C3, C4), and the 24V direct current of input is converted to stable 5V direct current, for control board work.
Light-controlled switching circuit by resistance (R1, R4, R10, R11, R12, R13), photo resistance (R3), potentiometer (R2), electric capacity (C5, C9, C10), triode (Q1), 555 timer and two integrated operational amplifiers (TLC2272) mutually cascade form.Photo resistance is very responsive to light, divide the power of pressure handle light to change by R1 and R2 and be converted to the corresponding signal of telecommunication, (Schmidt trigger has two stable states to give the Schmidt trigger that is comprised of 555 timers this signal again, but different from general trigger is, Schmidt trigger adopts the current potential triggering mode, and its state is kept by the input signal current potential; Successively decreasing for negative sense increases progressively the input signal of two kinds of different change direction with forward, Schmidt trigger has different threshold voltages, V-and V+.When input voltage increases from low to high, when arriving V+, output voltage is undergone mutation, and input voltage Vi is by high step-down, arrive V-, output voltage is undergone mutation, and therefore can changing the edge slowly, cyclical signal be transformed to the very steep rectangular pulse signal in edge), thus a rectangular pulse signal just can be produced.Again this pulse signal is divided into two-way, one road and operational amplifier forms feedback network, give another road this feedback signal again, give simultaneously the positive input of another operational amplifier, thereby just can obtain a basic pwm signal, thereby from controlling substantially the light on and off two states of lamp.
The light-control automatic dimming circuit is comprised of resistance (R5, R6, R9), photo resistance (R7), potentiometer (R8), electric capacity (C7, C8) and triode (Q2).By the sensitiveness of photo resistance to light, faint light is changed, be converted to electricity and change, amplify through amplifying circuit again, the reverse input end of signal to integrated operational amplifier circuit, thereby reach then different from DC driven to the light adjusting circuit of output signal PWM(PWM pulse, LED is in the pulsed operation state of switch-on and-off, and the pulse top is wider, and the LED ON time is just longer, LED is just brighter, otherwise will be darker.When the PWM light modulation, the maximum current during conducting is the steady state value that sets, and the size of electric current is only relevant with the width of PWM, therefore can colour temperature not exerted an influence because of the variation of On current.) finely tune, thereby make lamp box realize automatic dimming function.After LED used certain time limit, brightness will descend, and at this moment can will come on the luminance raising very easily by potentiometer R8.Since considered in the design of lamp box circuit 80% and more than amount of redundancy, with caused light decay after the compensation LED long-term work.Because the existing enough power headroom of each parts, so can guarantee stability and the reliability of circuit working after the blast.
(((D1 ~ D3), triode (Q3), two integrated operational amplifiers (TLC2272), 555 timers and a NAND gate (74LS00) form the acoustic control automatic dimming circuit for C11, C13 ~ C20), diode for R15 ~ R30), electric capacity by MIC, resistance.By the sensitivity of MIC to sound, voice signal is converted to the signal of telecommunication, again the signal of telecommunication is given the negative input end of secondary discharge circuit, amplify through triode again and give 555 monostable flipflops that consist of (playing time-lag action), give NAND gate signal again, thereby guarantee that output always is not high level when having sound at ordinary times, when noise is arranged, be output as low level.Two resistance R 29 of this signal series connection, R30 ground connection connect the output that a backward diode is received signal light-control automatic dimming circuit photosensor signal from drawing a signal between these two resistance again.When NAND gate was output as high level, by comparing, photosensor signal was unaffected, the normal operation of light-control automatic dimming circuit.When NAND gate was output as low level, by comparing, the output of photo resistance was equivalent to ground connection, and automatic dimming function lost efficacy, and it is highlighted to be equivalent to lamp box.
(((D1 ~ D3), triode (Q3), two integrated operational amplifiers (TLC2272), 555 timers and a NAND gate (74LS00) form the human body sensing automatic dimming circuit for C12, C13 ~ C20), diode for R15 ~ R30), electric capacity by the pyroelectric human body infrared transducer or to human body infrared very responsive infrared remote receiver, resistance.The infrared ray centre wavelength of human body radiation is 9 ~ 10um, and the wavelength sensitivity of pyroelectric infrared sensor almost stable in 0.2 ~ 20um scope is constant, just in time is suitable for the detection of human infrared radiation.When having the people close, transducer or receiver receive faint human body infrared, and be converted to the signal of telecommunication, again the signal of telecommunication is given the reverse input end of secondary discharge circuit, amplify through triode again and give 555 monostable flipflops that consist of (playing time-lag action), give NAND gate signal again, thereby guarantee that in lamp box there be nobody nearby process output always is high level, when there being the people to be output as low level under the lamp box when process.Two resistance R 29 of this signal series connection, R30 ground connection connect the output that a backward diode is received signal light-control automatic dimming circuit photosensor signal from drawing a signal between these two resistance again.When NAND gate was output as high level, by comparing, photosensor signal was unaffected, the normal operation of light-control automatic dimming circuit.When NAND gate was output as low level, by comparing, the output of photo resistance was equivalent to ground connection, and automatic dimming function lost efficacy, and it is highlighted to be equivalent to lamp box.
As shown in Figure 3, LED master's drive circuit by 4 respectively independently drive circuit form with corresponding light-emitting diode.Drive circuit is the adjustable drive circuit of constant current that device forms by the pwm signal of control board output and DW8502 power supply chip and periphery thereof in fact.LED is in the pulsed operation state of switch-on and-off, and the pulse top is wider, and the LED ON time is just longer, and LED is just brighter, otherwise will be darker.Because this advertising lamp box is very strong to the brightness requirement of light, general power circuit does not satisfy the requirement of LED drive plate, thus herein usefulness be that industrial 220V commonly used turns the 24V high power switching power supply.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within the protection range of the present utility model.
Claims (6)
1. human body sensing controlled by sound and light intelligent lamp box circuit with an automatic light meter, comprise control board (1), several LED drive plates (2) that are connected in parallel, and power supply (3), it is characterized in that: described control board (1) connects LED drive plate (2), control board (1) all is connected power supply (3) with LED drive plate (2), described control board (1) is provided with interconnective power circuit (101), light-controlled switching circuit (102), light-control automatic dimming circuit (103), acoustic control automatic dimming circuit (104) and human body sensing automatic dimming circuit (105), LED drive plate (2) forms by some drive circuits (201) of parallel connection and with the interconnective diode of drive circuit (201) (202).
2. human body sensing controlled by sound and light according to claim 1 intelligent lamp box circuit with an automatic light meter, it is characterized in that: described power supply (3) turns the high power switching power supply of 24V for 220V.
3. human body sensing controlled by sound and light according to claim 2 intelligent lamp box circuit with an automatic light meter, it is characterized in that: described light-controlled switching circuit (102) comprises amplifying circuit, integrated operational amplifier circuit and the Schmitt trigger circuit that is comprised of 555 timers.
4. human body sensing controlled by sound and light according to claim 3 intelligent lamp box circuit with an automatic light meter is characterized in that: described light-control automatic dimming circuit (103) comprise photo resistance and with the corresponding amplifying circuit of photo resistance.
5. human body sensing controlled by sound and light according to claim 4 intelligent lamp box circuit with an automatic light meter, it is characterized in that: described acoustic control automatic dimming circuit (104) comprises MIC, discharge circuit, NAND gate and the monostable flipflop that is made of 555 timers.
6. human body sensing controlled by sound and light according to claim 5 intelligent lamp box circuit with an automatic light meter, it is characterized in that: described human body sensing automatic dimming circuit (105) comprises infrared sensor of the human body/human body infrared line receiver, integrated operational amplifier circuit and the monostable flipflop that is made of 555 timers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201820841U CN202652611U (en) | 2012-04-25 | 2012-04-25 | Human body induction type acousto-optic control type automatic dimming intelligent light box circuit |
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| CN2012201820841U CN202652611U (en) | 2012-04-25 | 2012-04-25 | Human body induction type acousto-optic control type automatic dimming intelligent light box circuit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309332A (en) * | 2013-06-17 | 2013-09-18 | 同济大学 | Control device for dynamic environmental ambience of stadium |
| CN104328976A (en) * | 2014-11-26 | 2015-02-04 | 晏石英 | Garage door/rolling gate door control system with automatic lighting function |
| CN104867419A (en) * | 2015-06-10 | 2015-08-26 | 安徽科技学院 | Simple and reusable light-operated distributed LED display device and method thereof |
| CN107734783A (en) * | 2017-11-20 | 2018-02-23 | 佛山市德平灯饰有限公司 | A kind of control method of acoustic control infrared LED lamp |
| CN108170048A (en) * | 2017-12-19 | 2018-06-15 | 嘉兴市恒创电力设备有限公司 | Intelligent switch and intelligent control method |
| CN110177415A (en) * | 2013-10-23 | 2019-08-27 | 鲍尔卡斯特公司 | Automatic system for Lighting control |
-
2012
- 2012-04-25 CN CN2012201820841U patent/CN202652611U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309332A (en) * | 2013-06-17 | 2013-09-18 | 同济大学 | Control device for dynamic environmental ambience of stadium |
| CN110177415A (en) * | 2013-10-23 | 2019-08-27 | 鲍尔卡斯特公司 | Automatic system for Lighting control |
| CN110177415B (en) * | 2013-10-23 | 2022-02-01 | 鲍尔卡斯特公司 | Automated system for lighting control |
| CN104328976A (en) * | 2014-11-26 | 2015-02-04 | 晏石英 | Garage door/rolling gate door control system with automatic lighting function |
| CN104867419A (en) * | 2015-06-10 | 2015-08-26 | 安徽科技学院 | Simple and reusable light-operated distributed LED display device and method thereof |
| CN107734783A (en) * | 2017-11-20 | 2018-02-23 | 佛山市德平灯饰有限公司 | A kind of control method of acoustic control infrared LED lamp |
| CN108170048A (en) * | 2017-12-19 | 2018-06-15 | 嘉兴市恒创电力设备有限公司 | Intelligent switch and intelligent control method |
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Granted publication date: 20130102 Termination date: 20130425 |